anthonymaryoyinkanso anthonymaryoyinkanso
  • 02-07-2020
  • Mathematics
contestada

Solve the pair of simultaneous equation 4x+6y=21 and 7x-3y=3

Respuesta :

isabellaconrado28 isabellaconrado28
  • 02-07-2020

Answer:

Step-by-step explanation:

Answer Link
barakaodoyo5
barakaodoyo5 barakaodoyo5
  • 02-07-2020

Answer:

X=1.5,y=2.5

Step-by-step explanation:

By elimination method

U have to make either x or y values equal and then eliminate it

The y values have a common value 12

By multiplying 6×2 and 3×4

2(4x+6y)=(21)2

4(7x-3y)=(3)4

8x+12y=42

+

28x-12y=12

36x=54

X=54/36=1.5

Substitute x with 1.5

Y=2.5

Answer Link

Otras preguntas

3/4 x (z exponent 3 x 4) Find the equivalent expression.
(PLEASE HELP I NEED TO PASS GIVING BRAINLIST)When President Wilson asked Congress to declare war on Germany, what was one reason he stated? O He was angry that
The quotient of a number and -8 is -16 equation and solution
A jar contains 6 red marbles, numbered 1 to 6, and 12 blue marbles numbered 1 to 12. a. A marble is chosen at random. If you're told the marble is red, what is
Ammonia is a toxic nitrogenous waste that is produced in cells. Identify the excretory organ that involved in converting ammonia into less toxic chemical to be
3x + 8y = 7 2x - 2y = -10 what is x and y show work please basically show work
Write an equation in slope-intercept form that contains the points (0,-5), (1,-3), and (2,-1).
A mutation that involves the addition, subtraction, or substitution of a single base is known as.
True or false Polytheism is a belief in only ONE god
please help with q6 !!